// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//


#include <pollux/dwio/dwrf/common/encryption_specification.h>

namespace kumo::pollux::dwrf::encryption {

using dwio::common::encryption::EncryptionProvider;

proto::Encryption_KeyProvider toProto(EncryptionProvider provider) {
  switch (provider) {
    case EncryptionProvider::Unknown:
      return proto::Encryption_KeyProvider_UNKNOWN;
    case EncryptionProvider::CryptoService:
      return proto::Encryption_KeyProvider_CRYPTO_SERVICE;
    default:
      DWIO_RAISE("unknown provider: ", provider);
  }
}

EncryptionProvider fromProto(proto::Encryption_KeyProvider provider) {
  switch (provider) {
    case proto::Encryption_KeyProvider_UNKNOWN:
      return EncryptionProvider::Unknown;
    case proto::Encryption_KeyProvider_CRYPTO_SERVICE:
      return EncryptionProvider::CryptoService;
    default:
      DWIO_RAISE("unknown provider: ", provider);
  }
}

EncryptionSpecification& EncryptionSpecification::withRootEncryptionProperties(
    const std::shared_ptr<const dwio::common::encryption::EncryptionProperties>&
        props) {
  DWIO_ENSURE(props.get(), "props is required");
  DWIO_ENSURE(
      fieldSpecs_.empty(),
      "only one of encryption properties and encrypted fields is allowed");
  rootProps_ = props;
  return *this;
}

EncryptionSpecification& EncryptionSpecification::withEncryptedField(
    const FieldEncryptionSpecification& spec) {
  DWIO_ENSURE(
      !rootProps_.get(),
      "only one of encryption properties and encrypted fields is allowed");
  fieldSpecs_.push_back(spec);
  return *this;
}
} // namespace kumo::pollux::dwrf::encryption
